CVE-2021-0206

Description

A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engine (PFE) to crash and restart, resulting in a Denial of Service (DoS). By continuously sending these specific packets, an attacker can repeatedly disable the PFE causing a sustained Denial of Service (DoS). This issue only affects Juniper Networks NFX Series, SRX Series platforms when SSL Proxy is configured. This issue affects Juniper Networks Junos OS on NFX Series and SRX Series: 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S1; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S2, 19.2R2; 19.3 versions prior to 19.3R2. This issue does not affect Juniper Networks Junos OS versions on NFX Series and SRX Series prior to 18.3R1.

Risk Information

Base Score

7.5

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.39

Associated Vulnerability

Vulnerability	OS Platform
Multiple Vulnerabilities are fixed in junos 18.3R3-S4	NCM
Multiple Vulnerabilities are fixed in junos 18.4R3-S1	NCM
Multiple Vulnerabilities are fixed in junos 19.1R3	NCM
Multiple Vulnerabilities are fixed in junos 19.2R2	NCM
Vulnerabilities CVE-2020-1656,CVE-2020-1680,CVE-2021-0206,CVE-2021-0260 are fixed in junos 19.3R2.	NCM
NULL Pointer Dereference Vulnerability (CVE-2021-0206)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234